The "multiple criteria" is just there to draw attention to the preceding lines. In that case the two criteria in question will be the two lines immediately prior. If you feel that is unnecessary you can disable it in settings.
As for terraformable being interesting, my initial line of thinking with the built in criteria wasn't "what's worth money", but rather "what might be interesting enough to make sightseeing worthwhile". Since terraformable planets are not, on the whole, more interesting to look at than any other, I did not include just terraformable as a default criteria. That said, it's simple enough to add as a custom criteria. I can provide an xml snippet for it if you have trouble.
According to EDSM Nuele MJ-T c6-0 A 2 is not landable. Why does it matter if there are FSD synth materials there?
As for the rest, to be blunt, I could not possibly care less about non-premium FSD boosts, therefore they are not considered. The materials for non-premium boosts are ample, and not noteworthy.
Oh, interesting. I didn't have TTS enabled when I left mine running. I'll try that and see if it makes a difference.
The lack of any error is definitely strange. I might put an option for extra debug logging in the next build to see if someone can catch it in the act.
Thanks for clarifying